Not changed trigger angle/offset

[bifurkas]

Hi all!
MS3, TunerStudio, Jeep Wrangler 94, crank and cam sensors, full seq. Crank and cam signal is good, no sync lost, but TDC is later approximately on 100 deg. And not change by "Trigger angle/offset"! But change by "Crancking Advance".
Spark mode is "Jeep 2000"
Help me please!

[Matt Cramer]

You have set the trigger offset to 90 degrees away from the default value.

[bifurkas]

You have set the trigger offset to 90 degrees away from the default value.

Yes, I set it parameter from -90 to 200 - TDC not changed. Check by strobe. When value is not zero, TDC is unstable.
???

[jsmcortina]

Please take and post a composite log. I don't know if the crank/cam signal patterns are the same between 2000 and 1994.

James
PS. That "log" file you attached is a narrowband oxygen sensor calibration file.

[bifurkas]

Please take and post a composite log. I don't know if the crank/cam signal patterns are the same between 2000 and 1994.

James
PS. That "log" file you attached is a narrowband oxygen sensor calibration file.

It`s my composite log:

and it`s from manual of AMC242 4l 6 cyl (Jeep Wrangler 1994): http://jeep.avtograd.ru/cherokee/inject ... agramm.gif

[jsmcortina]

I reviewed the code and it does appear that the ignition is about 120 (EDIT) degrees different from that timing diagram. I'm not sure if anyone has used the "Jeep 2000" mode with coil-on-plug before.

I'll see about adjusting it for the next pre-1.4 beta code.

James

[bifurkas]

I reviewed the code and it does appear that the ignition is about 120 (EDIT) degrees different from that timing diagram. I'm not sure if anyone has used the "Jeep 2000" mode with coil-on-plug before.

I'll see about adjusting it for the next pre-1.4 beta code.

James

Thank`s for answer, James
What is the purpose of "Trigger angle/offset"? I think it`s a software adjustment position of crank/cam sensors. Or not?
I can turn cam sensor on engine, but not badly to do it software.

[jsmcortina]

What is the purpose of "Trigger angle/offset"?

It is intended to allow small adjustments to the position to compensate for manufacturing tolerances.

James

[odd boy]

when are you going to release the update, i have the same issue with 2000 Cherokee...

[odd boy]

http://www.msextra.com/forums/viewtopic ... 31&t=57576

[bifurkas]

I tried to solve the problem with trigger offset today. But there was another problem. I changed the firing order in eng & seq stttings, shifted on one cylinder. But TDC remained motionless. I have installed various combinations the firing order in eng & seq stttings, but TDC remains in the same position. I think the problem in Jeep 2000 spark mode.
Can I use regular sensors Jeep Wr 94 with full seq and COP?

[Matt Cramer]

The firing is fixed in an A-B-C-D-E-F pattern. Contact James for the test code to fix this.

[bifurkas]

The firing is fixed in an A-B-C-D-E-F pattern. Contact James for the test code to fix this.

I can interchange coil on spark. But ...

[jsmcortina]

The firing is fixed in an A-B-C-D-E-F pattern. Contact James for the test code to fix this.

I can interchange coil on spark. But ...

Did you notice the second part of what Matt wrote? Did you notice my posts above?

regards

James

[bifurkas]

OK OK James,
but

when are you going to release the update, i have the same issue with 2000 Cherokee...

?
With respect to your work.
Anatoly.

[jsmcortina]

This is in pre-1.4 beta11 released late last week.

James

[bifurkas]

I tested the new firmware today. Firmware is working correctly. Thanks James!